Edwin judd



Patented Dec. 19, 1893.

lllllllllllill E. JUDD.

FEED MEGHANISM PoR WooDWoRKING MAGHINES.

(No Model.)

Wozu m wasmmmu. o. c.

LII

UNITED STATES PATENT Orr-ice.

EDWIN JUDD, OF ST. LOUIS, MISSOURI, ASSIGNOR TO HALL da' BROWN I IVOODWORKING MACHINE CO., OF SAME PLACE.

FEED MECHANISNI FOR WOODWORKING MACHINES.

SPECIFICATION forming part of Letters Patent No. 511,205, dated December19, 1898. 4 Application filed April 10, 1393. Serial NoV 469,655. (Nomodel.)

To alt whom t may concern.-

Beit known that I, EDWIN JUDD,ot' the city of St. Louis and State ofMissouri, have invented certain new and useful Improvements in FeedMechanism for lVoodworking Machines, of which the following is a full,clear, l

The invention consists in the novel con- A struction, combination andarrangements of parts hereinafter described and pointed out in theclaims.

The object of my invention is to provide an improved in-feed gear formachines of, this class, whereby two or more pieces of lumber of dierentthicknesses can be positively fed through the machine at the same time.

A further object of my invention is to prof vide improved mechanism forraising and lowering the feed-rollsections at each side of the machineindependently, and for impart ingto each section a yielding continuousdownward pressure.

In the drawings: Figure 1 is a sectional side elevation of parts of awood-planing machine or surfacer having a horizontal bed, the sectionbeing taken on the line A- A of Fig. 2. Fig. 2 is a sectional plan viewof same.v Fig. 3 is a sectional elevation of same taken on the line B -Bof Fig. 2. Fig. et is a side elevation of the parts shown in Fig. 2,with the side plate of the frame and the large gearwheel removed,looking at the side of Fig. 2, which is at the bottom of the sheet ofthis drawing. Fig. 5 is a detail side elevation, looking at the innersurface of the side plate of the frame, shown at the upper portion ofFig. 2, and illustrating the details of the feedroll adjusting devices.Fig. 6 is a detail View in perspective of a vertically-movablejournal-box, used in a machine.

I have illustrated but two sections and the necessary adjacent parts ofthe machinaalthough it is clearly evident in applying the invention tomachines of the class above mentioned, these parts may be duplicated anynumber of times so as to provide tandem feed rolls, as the builder maydesire and the buyer prefer. In other cases, the feed mechanism which Ihere show may be substantially inverted with the parts iu the samerelative position, so that the sectional feed rolls will engage thepieces of lumber upontheir under surfaces. Such changes, I desire tostate, would fall within the line of skill possessed by any ordinarymechanic.

Referring to the drawings: I have deemed it unnecessary to illustrate acomplete machine.

1 indicates the bed of a wood planer, or a combined Wood planer andmatcher, and 2, the opposite vertical side-plates of the frame thereof.-v

The direction in which the lumber is fed to the machine is indicated bythe arrow in Fig. 1.

- 3 indicates opposite vertical guide-ways formed in the oppositeside-plates ofthe frame,

and having an open upper end.. f

i indicates a pair ofshort shaft sections, the outer end of each ofwhich is mounted in a box or bearing 5, which latter is arranged toslide freely up and down in one of the guide-ways 3. The inner ends ofthe shaftY sections 4 are closely adjacent each other, and said sectionsare normally in alignment. The boxes 5 are provided with guiding-fianges(i, which engage the sides of the guide-Ways 3, and serve to guide saidboxes in their upward and downward movement.

7 indicates an adjusting screw, the upper end-0f which is provided witha suitable handle or hand-wheel, and the body of which is threadedthrough a crosshead 8, which latter is located above the open end of theguideway 3.

As the mechanism at each side of the machine for adjusting the height ofthe shaft section 4, at that side, is identical, I will limit mydescription to the mechanism at one side of the machine. The adjustingscrews 7 may be operated separately, as I here show them, or they may beconnected by any known means, such as that which is now in every day usefor such purposes, so as to be operated simultaneously, and thereby adjust the height of the roll sections, for different thicknesses `oflumber. The lower end of the adjusting screw 7 is provided with a heador en largement S, which is mounted to revolve in a housing 9 formedupon or secured to -the upper side of the box 6, so that when said screwis turned in either direction the box to which it is connected, will becorrespondingly moved up or down. A U-shaped stirrup 10 has the upperends of its arms connected to the cross-head S, and its body'extendsdown- Ward and is connected to a weighted lever 11, by means of a linkor equivalent device 12. The lever 11 `is fulcrumed at 13, and carriesan adjustable weight 14.

15 indicates the under feed roll, which is of the ordinary construction,and need not be specifically descri-bed with the exception of vstatingthat it extends substantially across Vthe'fbed of the machine in theform of a sinrgle `long roll and is driven by means of -a gearwhee'l -orgearwheels 16 mounted upon the projectingend or ends of its shaft,meshing with another suitable gear or gears (not shown) -so that it willbe revolved in the direction indicated by the arrow in Fig. Y1.

Mounted in 'bearings 17 and 'extending across the machine directlylbeneaththeloed 1 Yparallel with and in the rear of the -lower roll 15,is a long shaft 18. Keyed or otherwise -iixed yupon theshaft 18adjacenteach edge of lthe-,bed @l `is a gear-wheel 19, and the lower end of alink 20 is loosely mounted `upon `said shaft exterior of each of saidgear-wheels 19, -so astov lloosely engage yand rock -upon vsaidshaft-during the operation :hereinafter mentioned. A gear wheel 21 ismounted upon the long shaft of the under -roll 15, onead-jacent each ofits ends, so that there are two of said gears 21 carried by said shaft.The Agears21 `carried by the underi'oll of the shaft mesh with the gears19 carried-bythe shaft 18.

4221indicates ashaft which is cut into two sections and eachsection-is-held in alignment lby-means ofasleeve, 23'the bore of whichislooselyfengaged bythe Ainner end of one or both of thesections of fthisshaft, soi-that each section may axiallyrotate or rock-independ en-tofthefother. This shaft extends the full width of the bed 1, asufficientdistance above same to permit thepassageof thickpieces oflumber -to'thefeed -rolls, but `ithas no fixed bearings or boxes and isfree to -bevmoved 'ibodil'yforward'or-back.

Therear ends of alpair of links 24 are -riglidly'ifixed one to eachsection of the shaft 22, by means of set screws 25 or keys, sothat theoppositeends of said links project forward and are ,loosely mounted oneupon each of the shaft sections 4 at a Ipoint adjacent lthe verticalmovable boxes orbearings 5.

-126 indicates a pair of gear-wheels, one each :of-which is looselymounted torevolve freely upon eachsection ofthe shaft 22, at aapointVadjacentfits outer end.

,27 -indicates a-pair of collars, one each of whiehlis-xed-upon eachsection of the shaft r22 adjacent the hub of each gear-wheel-26,

,for the purpose of holding said lgear-wheels in proper position uponits section.

28 indicates another pair of gear-wheels, one of which is fixed uponeach shaft section 4 at a point adjacent the link 24.

29 indicates a pair of cast-iron yokes, which are substantially:l--shaped in plan View. Each one of this pair of yokes has its rear endrigidly ixed to one section of the shaft 22, so as to rock with saidsection, and its arms are provided with bearings 30 in which one of theshort shaft sections 4 is mounted to operate. Fixed upon each of theshort shaft sections 4, between the arms of a yoke 29, is a short rol-lsection 31, for the purpose of positively feeding the lumber.

Suitable oilers v32 are applied to the bearings in the arms of the yokes29,for the purpose of applying lubricant to lthe journals of the shortshaft .sections 4.

Theconstructionis such that .the liniks 24 and the yokes 29 form theonly support for the roll sections 31 and their shaft sections, so thatalthough said rollseetionsmaybe adjusted up and down, they will bepositively supported andpositively driven duringsuch adjustment.

`'From the above construction it will beseen that the two short rollsections are eachyieldingly mounted V.in a swinging -yoke,vso :that eachmay feed Vindependentpiecesof lumber, although onepiece be ofconsiderablyg-reater thickness than the other. It will ib've@furtherseen that although the roll-sections are yieldingly mounted to .swing upVand down, each of them =is also separatel-ylmovahleibodily a .slightdistance 1in the Avdirection :longitudinal-of thebedof `the-machine.Itwillibe further seen Vthat Athere'is-applied-to-eachrollsection-anindependent-continuonsdownward pressure, Ain-addition vto Ithe gravit-yof said sections themselves, the pressure'mechanism -for eachroll-section being separate-andindependent both in construction 4andoperation.

The operation-is as follows: Two pieces of lumber of dierentthicknessesbeingfplaced on the under -longroll l5 and in vcontact each with one ofthe -roll sections 31, and -the-machine started up,the^rollsectionswilltassume the-position-.shownin Fig. 3, that y"is, the-one restingupon the thinncrpiece of-lumber will drop belowthe oneresting uponlthethicker piece .and -retain such position duri-ng the feeding ofsaidspiece of Llumberybut during suchtime each piece-Will bepositivelyfed bythe roll section whichenga'ges i-t,no `matter if thethicknesses be diierent. The-shaftsections 4 are guided in'the straightvertical grooves 3, and when they aremoved upward or downward theyswing'theshaft-sections22 eitherforwardor backward into Fand out of theposition in whichfthey arefshownlbydotyted linesin Fig. 1. `Ofcourse,fwhen a lthick 'piece of lumbrerpasses under @both -rollsections`31, -the .shaft-.sections `each occupy about theposition in-which-they-are r-sholw'n' -in solid lines inFig. 1, but Whena thinpiece of lumber is passed under oneof said rollsections only one of theshaft-sections 22 occupes the position indicated by 'dotted lines 1nFig. l, and the other occupies about the positionin which it is showninsolid linesin said figure, said shaft-sections 22 beingloosel yconnected by the sleeve`23 in 'the manner previously described, so thatsaid sections 22 are held in alignment, but as a whole shaft will beskewed around so as to occupy a slightly oblique position with relationto the said roll,

sections. This oblique movement is very slight, and is permitted by aslight bending or twisting of the links 20 and 24, which are .connectedthereto, said shaft-sections 22 having, as previously stated, no fixedbearing. This oblique movement is further permitted by reason of thefact that the adjacent ends of said shaft-sections 22 are looselymounted in the sleeve 23. By the words loosely mounted, I mean that thesize of said shaftsections 22 is slightly less than the diameter of thebore of said sleeve, so that a slight oblique movement of each of saidsections may take place in the bore of said sleeve. The roll sectionsare each yieldingly mounted, for the reason that said sections may'readily lift independent of each other when they run upon a piece oflumber, the yokes 29 carrying said roll sections will be slightlyswung'upward, rocking the shaft 22 in its bearingsin the upper ends ofthe rocking links 20, and throwing the upward pressure upon the boxes 5,and upon the screws 7, the cross-heads 8, the stirrups l0, the weightlevers ll, and thereby lifting the weight le a corresponding distance.This construction is such that the weight le imparts a yieldingcontinuous downward pressure upon the roll sections, thereby causingthem to yieldingly engage the upper surface of the lumberfed beneaththem.

lWhen vit is desired to adjust the roll sections for lumber of greateror less thickness,

the screws '7 are turnedv in acorresponding direction, thereby raisingand lowering the boxes 5 in their guideways 3, independently of thestirrups l0 and the weight levers ll, saidstirru'ps and said weightlevers remaining stationary during this adjustment of the boxes 5. lSuch a construction provides a very durable and efficient in-feed forwood-planners, matchers, dic., the same being of reasonable cost and notliable to become deranged during use.

Although the shaft sections 4 upon which the roll sections 3l aremounted do not extend continuously across the machine, yetI have foundthat these parts are amply strong for all practical purposes, thehorizontal 'links 2d really forming a rigid connection between saidshaft sections and the rocking sections of the shaft 22.

I am aware that a surfacing machine has been made with two verticallymoving independent press-rolls on opposite sides to force the lumberupward against an endlessfeeding apron, and this I do not claim.

I am further aware that a planing machine has been constructed withseparate feed-rolls mounted in swinging yokes, one in front of the otherin tandem style, but as in such construction the yokes have been looselymounted to swing upon a long shaft which is fixed so as to extendLcontinuously across the machine in immovable bearings, the same failsto answer the purpose of my invention, and I make no claim to suchconstruction.

I am further aware that a surfacing machine has been made with a seriesof short aligned gravity rolls located to move up and downindependently, but in this latter arrangement there has been noprovision made for any other downward pressure upon.the rolls than thatexerted by the gravityof the rolls themselves, and this I do not claim.

What I claim is- A l. In a wood planer, matcher, or the like, fourseparate shaft-sections, two of whichpar'e mounted end to end to rockindependent of eachl other and swing bodily, and the other twoof whichare also mounted end to en dto move bodily but to rotate, roll-sectionsmounted one upon each of said last mentioned shaftsections, means whichconnect each of said last mentioned shaft-sections to one of said firstmentioned shaft-sections, so that when said .last mentioned sections aremoved bodily np and down, said rst mentioned sections will becorrespondingly rocked, a sliding-bearing for the outer ends only ofsaid last mentioned shaft-sections, links which movably support theouter ends of said first mentioned shaft-sections, gearing for impartingindependent axial movement to each of said roll-sections, and means forimparting a yielding continuous downward pressure to said roll-sections,substantially as herein specified.

2. The combination in a wood planer matcher or the like, of a suitablemachine frame, a pair of short shaft sections 4, bearings or boxes 5arranged to slide freely up and down in guides in said frame and inwhich the outer ends of said shaft sections are mounted, means for adjusting said boxes or bearings vertically in said guides, theinner end ofsaid shaft sections being disposed closely adjacent each other and saidsections normally in alignment, a shaft 22 eut into two sections andeach section held in alignment, a sleeve 23 the here of which isYengaged by the inner ends of both sections of said shaft 22 so that,each section may rock or have axial-rotation independent of the other,said shaft 22 extending the full width of the bed of the machine butbeing devoid of ixed bearings or boxes and being free to be moved bodilyforward orbackward, a pair of horizontal links 24 the rear ends of whichare readily fixed one to each section of the shaft 22 so that theopposite-ends of said, links project forward andare loosely mounted IOOIIO

connected to the sections of the shaft 22 to move the same and impart acontinuous yielding downward pressure to said roll sections in additlonto the Weight thereof, and gearing for positively driving said rollsections, substantially as herein set forth.

3. Ina wood-planer, inateher or the like, the combination of a bed 1,opposite vertical side plates 2 of the frame vertically moving shaftboxes mounted upon said side plates, a pair of short shaft sections 4the outer end of each of which is mounted in said boxes and the otherends of which are adjacent each other and normally in alignment, anunder feed roll l5, a short roll section 3l mounted upon each of theshaft sections abovesaid under roll, a sectional shaft 22 mounted in therear of said shaft sections, to rock and move axiallyand laterally yokes29 fixed upon the sections of saidshaft22 and arranged to support theinner edges and ends of vsaid shaft sections, means for raising andlowering the roll sections independent of each other, means forimparting independent constant downward pressure to each of said rollsections', and means for rotating'each of said roll sections,substantially as herein specified.

4. In a wood-planer, matcher or the like, the combinationofindependentlydriven shortroll sections placed end to end, the side plates 'of themachine-frame having opposite vertical guide-Ways formed therein, a boxor bearing 5 mounted in each of said guideways'to control the upward anddownward adjustment of said roll sections, a cross-head 8 mounted abovethe open end of each guideway, adjusting screws 7 the upper ends ofwhich are provided with suitable handles or hand-wheels and the body ofeach of which is threaded through one of said cross-heads, the lower endof each adjusting screw loosely engaging one of said boxes, U-shapedstirrups l0 having their upper ends connected to said cross-heads andtheir bodies extending downward and connected to a weighted lever,substantially.

as herein specified.

In testimony whereof Iaftix my signature in presence of .two witnesses.

EDXVIN JUDD.

Witnesses:

EDWARD EVERETT LONGAN, JNO. C. HIGDoN.

